Hibernating without Oxygen: Physiological Adaptations of the Painted Turtle
β Scribed by Donald C. Jackson
- Book ID
- 110111940
- Publisher
- Cambridge University Press
- Year
- 2002
- Tongue
- English
- Weight
- 131 KB
- Volume
- 543
- Category
- Article
- ISSN
- 0022-3751
No coin nor oath required. For personal study only.
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Successful overwintering under ice by an air-breathing vertebrate requires either effective aquatic respiration if dissolved O 2 is available or the capacity for prolonged anaerobic metabolism if O 2 supplies are limiting. Frogs can remain aerobic for many weeks when submerged at low temperature, ev
Common map turtles (Graptemys geographica) were collected from a natural underwater hibernaculum in Vermont at monthly intervals during the winter of 1997-1998. Blood was sampled by cardiac puncture and analyzed for pH, PCO 2 , PO 2 , and hematocrit; separated plasma was tested for Na + , K + , Cl -